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Leon F Marker

from Akron, OH
Deceased
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Also known as:
Leonard F Marker
Phone and address:
100 Brookmont Rd APT 113, Akron, OH 44333
(330) 666-4999
Related to:
Timothy S Patrick, 57Karen Jo Lee, 59Eve MarkerLaurie K Marker, 67
Connected to:
Becky L Marker, 69Bradley Marker, 46Christi L Marker, 55Dick A Marker, 83Dylan C Marker, 44Erika L Marker, 53Fred Marker, 70Joel T Marker, 67Karan L Marker, 69Kristine F Marker, 58

Leon Marker Phones & Addresses

  • 100 Brookmont Rd APT 113, Akron, OH 44333 (330) 666-4999
  • 100 Brookmont Rd, Akron, OH 44333
  • Oakland, CA
  • 3077 Edgerton Rd, Stow, OH 44224
  • Silver Lake, OH
  • 100 Brookmont Rd APT 113, Akron, OH 44333

Publications

Us Patents

Apparatus For Making Cast Annular Laminates

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US Patent:
42760097, Jun 30, 1981
Filed:
Jun 15, 1979
Appl. No.:
6/048943
Inventors:
Sundar L. Aggarwal - Akron OH
Leon F. Marker - Cuyahoga Falls OH
Thomas J. Dudek - Tallmadge OH
Robert J. Herold - Akron OH
Assignee:
The General Tire & Rubber Company - Akron OH
International Classification:
B29H 500
US Classification:
425130
Abstract:
A laminated product such as a tire is cast from chemically extending liquids which form a laminated solid in a mold. The mold cavity is closed in preparation for use except for casting fluid inlet ports and exhaust vents. The mold cavity defines the shape of the product to be cast. Two or more chemically extendable liquids are injected into the mold without mixing through the inlet ports. Each liquid is injected through a different port. After injection, the liquids are arranged in alternate circumferential segments within the annular space. At least one of the inner and outer surfaces which define the mold cavity is then rotated about the common axis to impart a spiral configuration to each of the injected liquids. The liqiuds are then allowed to chemically extend to solids and form a laminated product such as a tire. The products, when they comprise alternate layers of high and low elastic modulus materials, have better resistance to flex cracking than non-layered materials of similar composition having similar average stiffness.

Cast Annular Laminates And Method And Apparatus For Making Same

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US Patent:
41029712, Jul 25, 1978
Filed:
Mar 14, 1977
Appl. No.:
5/777200
Inventors:
Sundar L. Aggarwal - Akron OH
Leon F. Marker - Cuyahoga Falls OH
Thomas J. Dudek - Tallmadge OH
Robert J. Herold - Akron OH
Assignee:
The General Tire & Rubber Company - Akron OH
International Classification:
B29C 504
B29D 2308
B29H 300
B29H 502
US Classification:
264255
Abstract:
A laminated product such as a tire is cast from chemically extending liquids which form a laminated solid in a mold. The mold cavity is closed in preparation for use except for casting fluid inlet ports and exhaust vents. The mold cavity defines the shape of the product to be cast. Two or more chemically extendable liquids are injected into the mold without mixing through the inlet ports. Each liquid is injected through a different port. After injection, the liquids are arranged in alternate circumferential segments within the annular space. At least one of the inner and outer surfaces which define the mold cavity is then rotated about the common axis to impart a spiral configuration to each of the injcted liquids. The liquids are then allowed to chemically extend to solids and form a laminated product such as a tire. The products, when they comprise alternate layers of high and low elastic modulus materials, have better resistance to flex cracking than non-layered materials of similar composition having similar average stiffness.

Laminated Pneumatic Tire

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US Patent:
40448118, Aug 30, 1977
Filed:
Jul 16, 1975
Appl. No.:
5/596494
Inventors:
Thomas J. Dudek - Tallmadge OH
Leon F. Marker - Cuyahoga Falls OH
Hendrik Jan Jacob Janssen - Den Haag, NL
Assignee:
The General Tire & Rubber Company - Akron OH
International Classification:
B60C 512
US Classification:
152354
Abstract:
A laminated pneumatic tire is disclosed which may be free of reinforcing fabric and which is made of a substantial number of alternating layers of high-modulus and low-modulus polymeric material such as synthetic rubber, polyurethane rubber, and various elastoplastic and high-modulus plastic materials including polycarbonate, nylon, epoxide resins, polystyrene and the like. The alternating hard and soft layers provide the tire with a necessary durability and resistance to flex cracking. The tire may contain low-modulus polymeric layers with a Young's modulus from 300 to 2000 or higher. The high-modulus layers of the tire may have a Young's modulus from 3000 to 50,000 or higher. The preferred process involved forming the individual layers from liquid polymeric materials, such as liquid polyurethane polymers, and forming the tire in molds wherein the layers are applied to the inside of the mold by spraying or otherwise applying the liquid polymer while rotating the mold or otherwise providing rotating motion between the applicator and the mold.
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Leon F Marker from Akron, OHDeceased Get Report